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I'm trying to use the message manager in magento2 (admin side) by object injection but when i add it to my controller - my controller doesn't run.

class Example
{
    protected $_messageManager;

    public function __construct(
        \Magento\Framework\Message\ManagerInterface $messageManager
    ) {
        $this->_messageManager = $messageManager;
    }

    public function method( ) {
        ..
        $message = '...';
        $this->_messageManager->addError($message);
        ..
    }
}
  • clear the contents of var/generation. – Marius Nov 10 '15 at 8:14
  • Cool! it almost works... Now it shows the error message only when I refresh the admin page. – Omry Zobel Nov 10 '15 at 8:26
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Implementation of \Magento\Framework\Message\ManagerInterface - \Magento\Framework\Message\Manager uses sessons. Try to clean browser cookies

  • I tried opening it in incognito but still i need to refresh the page in order to see the message. – Omry Zobel Nov 11 '15 at 10:25
  • Try to clean cookies and brwoser cache, not incognito mode. Try also clean up /var directory – Arkadii Chyzhov Nov 11 '15 at 19:13

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